Some children spend most of their free time ( ) television
A.looking
B.seeing
C.watching
D.observing
第1题:
第2题:
第3题:
用括号中所给单词的正确形式填空 Cheryl enjoys _______ (spend) her free time with friends and her two sisters.
第4题:
第5题:
第6题:
在MOST数据总线系统中, 把光信号变成电压,然后该电压被发送到MOST收发器。